schedule_code_generator_for_code_with_subsystem

**This is an old revision of the document!**

Given an affine system with subsystems/useEquations, this page shows how to specify the targetmapping for the system and generate the code.

The following code is the alpha program for matrix matrix multiplication with dot-product subsystem.

affine matrix_product_SubSyst {N,K,M | N>0 && K>0 && M > 0} // Product between a N*K matrix and a K*M matrix input float A {i,k | 0<=i<N && 0<=k<K}; float B {k,j | 0<=k<K && 0<=j<M}; output float C {i,j | 0<=i<N && 0<=j<M}; let use {iP,jP|0<=iP<N && 0<=jP<M} dot_product[K] ((pi,pj,k->pi,k)@A,(pi,pj,k->k,pj)@B) returns (C); . affine dot_product {N| N>0} // Product between 2 vector of size N input float vect1 {i | 0<=i<N }; float vect2 {i | 0<=i<N }; output float Res; local float temp {i | 0<=i<N}; let temp[i] = case {i|i==0} : vect1[0] * vect2[0]; {i |0<i<N} : temp[i-1] + vect1[i]*vect2[i]; esac; Res[] = temp[N-1]; .

The program contains two systems. The dot_product system takes two vectors as inputs and computes the doc product of these two vectors. The matrix_product_SubSyst computes matrix C=A*B, the (ip,jp)th element for the answer matrix C is computed by calling the dot product subsystem, and the (ip)th row of A, and (jp)th column of B is passed as input to the subsystem call.

schedule_code_generator_for_code_with_subsystem.1404763541.txt.gz · Last modified: 2014/07/07 14:05 by yun